Corridor Using Lighting

Today in Class we made a corridor using lights. To make the corridor first we got a box and converted it into an editable mesh, then we deleted the top and side polygons to make it look like a drainpipe shape. We then clicked on a button that said "show normals" which made the outside polygons visible in the render but not the inside polygons, but we needed it to be the other way round so we clicked flip this then made it so the inside polygons were visible and not the outside polygons. After that we created a cone which was going to be a lampshade we then placed it on the top of the roof and created a spotlight coming from it, then to create more lights we simply cloned the lights untill we had enough lights , some of us then changed the colour of the lights to make them our own.